#21f5a0

Color #21f5a0

A vivid, highly saturated medium green.

Closest named color Medium Spring Green #00fa9a · ΔE 6.38 Nearest Tailwind class green-300 #7bf1a8 · ΔE 4.9

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#21f5a0

RGB

rgb(33, 245, 160)

HSL

hsl(155.9, 91.4%, 54.5%)

HSV / HSB

hsv(155.9, 86.5%, 96.1%)

CMYK

cmyk(86.5%, 0%, 34.7%, 3.9%)

LAB

lab(86.09, -66.52, 27.79)

LCH

lch(86.09, 72.09, 157.33)

OKLCH

oklch(85.7%, 0.1929, 158.73)

HWB

hwb(155.9, 12.9%, 3.9%)

Harmony colors

Complementary

#f52176

Analogous

#21f536

#21f5a0

#21e0f5

Triadic

#21f5a0

#a021f5

#f5a021

Split-complementary

#21f5a0

#f521e0

#f53621

Tetradic

#21f5a0

#2176f5

#f52176

#f5a021

Square

#21f5a0

#3621f5

#f52176

#e0f521

Shades

Color #21f5a0 mixed toward black.

#0ade89

#08b16d

#068552

#045937

#022c1b

Tints

Color #21f5a0 mixed toward white.

#46f7b0

#6bf8c0

#90facf

#b5fcdf

#dafdef

Tones

Color #21f5a0 mixed toward gray.

#33e39c

#44d299

#56c095

#68ae92

#799d8e

Accessibility

Aa White text on this color

1.44:1

Aa Black text on this color

14.63:1

Black text reads better on this background (14.63:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#aaacb9 · ΔE 34.1

Deuteranopia

#a091bf · ΔE 45.3

Tritanopia

#45cbce · ΔE 24

Achromatopsia

#d7d7d7 · ΔE 27.7

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #21f5a0;

Tailwind (arbitrary value)

bg-[#21f5a0]

Related colors

Medium Spring Green #00fa9a

Medium Aquamarine #66cdaa

Aquamarine #7fffd4

Mint Cream #f5fffa

Spring Green #00ff7f

Medium Sea Green #3cb371

Frequently asked questions

#21f5a0 (#21f5a0) is rgb(33, 245, 160) in RGB.

No, #21f5a0 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #21f5a0, or check how it holds up for accessibility.

Generate a palette → Check contrast